必须进行粗加工以去除原材料轧制过程中的表面氧化脱碳。

Rough machining shall be performed so as to remove all mill decarburization from the raw material surface.

youdao

必须进行粗加工以去除原材料轧制过程中的表面氧化脱碳。

Rough machining shall be performed so as to remove all mill decarburization from the raw material surface.

youdao